Moonray Studios announced that Debris, a game about exploring and surviving the underwater mysteries of the Arctic Ocean, has recently been updated to include a narrative-driven co-op mode, which is a rare thing for a game to have.

If you’re thinking “Wow that sounds a little like Abzu or Subnautica but with co-op!” you’re not far off. Debris centers around a video documentary crew who discover meteoric debris deep down in the depths of the Arctic Ocean beneath the ice. The idea is to study the debris, which is said to provide clean and hyper-efficient energy. You take on the roles of Ryan, Chris and Sonya from the documentary team, as they dive deep into the mysteriously beautiful and murkily dangerous waters of the Arctic.

Things take a turn for the worse when an accident occurs and players are forced to navigate their way through the dark depths and avoid immediate dangers like sharks and other creatures. A trailer for the cooperative mode was recently released to give gamers an idea of what the mode is like. You can check it out below.

Now unlike Subnautica you have various weapons at the ready to use against potential predators or possible foes.

Additionally, the game is themed around a limited supply of power, so you have to choose wisely what you do and how you do it.

Now for the bad part: the reviews from gamers are harsh on Debris not because the game is bad or that the controls don’t work, but because of the ending and that they feel aspects of the game mirror walking simulators.

A lot of comparisons are thrown around to Subnautica, stating that the latter game has better sound design (well, until the sound designer got fired for being a Conservative) and that the atmosphere and story played out in a more compelling fashion.

Of course, the major difference is that Debris is a lot cheaper than Subnautica, and even more-so during the week of the co-op mode being released, where you can get it for 50% off for only $9.99. So keep in mind that while it is an underwater exploration game, it’s less expensive and less feature-rich than Subnautica. If you’re still interested in the game, you can learn more by visiting the Steam store page.